With less than 24 hours until New Hampshire voters head to the primary polls, the Republican candidates are making their final pitches.

Newt Gingrich focused squarely on the current frontrunner Mitt Romney.

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I do believe this is, in fact, a dramatically more wide-open primary than anybody thought five days ago," Gingrich said.

With that thought in mind, Gingrich continued to campaign aggressively in New Hampshire on Monday.

"The Suffolk poll this morning said that Romney's lost a great deal of momentum in the last four days. And I think that's because people looked up and instead of being told, 'Oh, he's inevitable,' they said, 'Who is he?'" Gingrich told a group of prospective voters in Dover.

Gingrich supporters in South Carolina released a documentary slamming Romney's business practices. The full effect of the video may not be known until the South Carolina primary on Jan. 21.

Rick Santorum, who some see as the conservative alternative to Romney, held an outdoor rally in Nashua where he detailed what he believes is the biggest impediment to economic growth.

"The uncertainty of what the government's going to require you to do next. The amount of time that small businesses -- who are the economic engine of a recovery -- are spending, trying to figure out what next the Obama administration is going to do to tell them how to run their business is destroying the economic recovery," Santorum said.

Ron Paul used his stump speech in Hollis to describe his vision of foreign and fiscal policy.

"Actually my strategy has always been the same: intense interest in what I consider very important and that is individual freedom," he said.

Jon Huntsman was optimistic as he worked to reach as many undecided voters as possible in the final hours before the polls open.

"I feel an energy on the streets of this state. I dont know how to quantify it, but its real. And having been through an election before, you either have that energy or you dont. And it clearly is there," he said.